﻿using ClockLib;
using Mva.Recognition;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.ApplicationModel;
using Windows.ApplicationModel.Activation;
using Windows.ApplicationModel.AppService;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI;
using Windows.UI.ViewManagement;
using Windows.UI.Notifications;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using XiaoweiUWP.HpControls;
using XiaoweiUWP.Pags;
using XiaoweiUWP.Services;

namespace XiaoweiUWP
{
    /// <summary>
    /// 提供特定于应用程序的行为，以补充默认的应用程序类。
    /// </summary>
    sealed partial class App : Application
    {
        /// <summary>
        /// 初始化单一实例应用程序对象。这是执行的创作代码的第一行，
        /// 已执行，逻辑上等同于 main() 或 WinMain()。
        /// </summary>
        public App()
        {
            this.InitializeComponent();
            this.Suspending += OnSuspending;
           // ApplicationModel.Instance.InitMvaService();
        }

        /// <summary>
        /// 在应用程序由最终用户正常启动时进行调用。
        /// 将在启动应用程序以打开特定文件等情况下使用。
        /// </summary>
        /// <param name="e">有关启动请求和过程的详细信息。</param>
        protected override void OnLaunched(LaunchActivatedEventArgs e)
        {
            Frame rootFrame = Window.Current.Content as Frame;

            // 不要在窗口已包含内容时重复应用程序初始化，
            // 只需确保窗口处于活动状态
            if (rootFrame == null)
            {
                // 创建要充当导航上下文的框架，并导航到第一页
                rootFrame = new Frame();

                rootFrame.NavigationFailed += OnNavigationFailed;

                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
                {
                    //TODO: 从之前挂起的应用程序加载状态
                }

                // 将框架放在当前窗口中
                Window.Current.Content = rootFrame;
            }

            if (e.PrelaunchActivated == false)
            {
                if (rootFrame.Content == null)
                {
                    // 当导航堆栈尚未还原时，导航到第一页，
                    // 并通过将所需信息作为导航参数传入来配置
                    // 参数
                    //HomePage
                    rootFrame.Navigate(typeof(RootPage), e.Arguments);
                    //rootFrame.Navigate(typeof(MainPage), e.Arguments);
                }
                // 确保当前窗口处于活动状态
                Window.Current.Activate();
            }

            SetTitleBar();
        }

        private void SetTitleBar()
        {
            //扩展
            var coreTitleBar = Windows.ApplicationModel.Core.CoreApplication.GetCurrentView().TitleBar;
            var appTitleBar = Windows.UI.ViewManagement.ApplicationView.GetForCurrentView().TitleBar;
            coreTitleBar.ExtendViewIntoTitleBar = true;
            appTitleBar.ButtonBackgroundColor = Colors.Transparent;
            //HpTitileBar AppTitleBar = new HpTitileBar();
            //AppTitleBar.Height = 33;
            //AppTitleBar.Width = 120;
            //Window.Current.SetTitleBar(AppTitleBar);
            this.SetWindowsSize();
            ApplicationModel.Instance.Init();
        }

        private void SetWindowsSize()
        {
            ApplicationView.PreferredLaunchViewSize = new Size(960, 576);
            ApplicationView.PreferredLaunchWindowingMode = ApplicationViewWindowingMode.PreferredLaunchViewSize;
        }
        /// <summary>
        /// 导航到特定页失败时调用
        /// </summary>
        ///<param name="sender">导航失败的框架</param>
        ///<param name="e">有关导航失败的详细信息</param>
        void OnNavigationFailed(object sender, NavigationFailedEventArgs e)
        {
            throw new Exception("Failed to load Page " + e.SourcePageType.FullName);
        }

        /// <summary>
        /// 在将要挂起应用程序执行时调用。  在不知道应用程序
        /// 无需知道应用程序会被终止还是会恢复，
        /// 并让内存内容保持不变。
        /// </summary>
        /// <param name="sender">挂起的请求的源。</param>
        /// <param name="e">有关挂起请求的详细信息。</param>
        private void OnSuspending(object sender, SuspendingEventArgs e)
        {
            var deferral = e.SuspendingOperation.GetDeferral();
            //TODO: 保存应用程序状态并停止任何后台活动
            deferral.Complete();
        }

        protected override void OnBackgroundActivated(BackgroundActivatedEventArgs args)
        {
            base.OnBackgroundActivated(args);
            if (args == null) return;
            if (args.TaskInstance == null) return;
            if (args.TaskInstance.TriggerDetails is AppServiceTriggerDetails details)
            {
                Services.AppServiceManager.Instance.HandleBackgroundTask(args);
                ApplicationModel.Instance.Init();
            }
            else if (args.TaskInstance.TriggerDetails is ToastNotificationHistoryChangedTriggerDetail triggerDetail)
            {
                ClockManager.Instance.HandleBackgroundTask(args);
            }
            else if (args?.TaskInstance.Task.Name == Recognizer.BackgroundTriggerName)
            {
                Recognizer.TaskDeferral = args.TaskInstance.GetDeferral();
                Logger.Debug.WriteLine($"OnBackgroundActivated: 1st-stage keyword activation");
                MVAWakeUpService.Instance.StartDetection();
                // NOTE: this will be restored in a future OS update.
                // this.deferral.Complete();
                // this.deferral = null;
            }
            
        }
    }
}
